@inproceedings{bridges2019:407, author = {Verhoeff, Tom and Verhoeff, Koos}, title = {The Obtetrahedrille as a Modular Building Block for 3D Mathematical Art}, pages = {407--410}, booktitle = {Proceedings of Bridges 2019: Mathematics, Art, Music, Architecture, Education, Culture}, year = {2019}, editor = {Goldstine, Susan and McKenna, Douglas and Fenyvesi, Krist\'{o}f}, isbn = {978-1-938664-27-4}, issn = {1099-6702}, publisher = {Tessellations Publishing}, address = {Phoenix, Arizona}, url = {http://archive.bridgesmathart.org/2019/bridges2019-407.html} }